fn main() { cc::Build::new().file("foo.c").compile("foo_c"); cc::Build::new().file("foo_asm.s").compile("foo_asm"); cc::Build::new().cpp(true).cpp_set_stdlib(None).file("foo_cxx.cpp").compile("foo_cxx"); // When the cmake crate detects the clang compiler, it passes the // "--target" argument to the linker which subsequently fails. The // `CMAKE_C_COMPILER_FORCED` option makes sure that `cmake` does not // tries to test the compiler. From version 3.6 the option // `CMAKE_TRY_COMPILE_TARGET_TYPE=STATIC_LIBRARY` can be used // https://cmake.org/cmake/help/v3.5/module/CMakeForceCompiler.html let dst = cmake::Config::new("libcmake_foo") .build_target("cmake_foo") .define("CMAKE_C_COMPILER_FORCED", "1") .define("CMAKE_CXX_COMPILER_FORCED", "1") .define("CMAKE_TRY_COMPILE_TARGET_TYPE=STATIC_LIBRARY", "1") .build(); println!("cargo:rustc-link-search=native={}/build/", dst.display()); println!("cargo:rustc-link-lib=static=cmake_foo"); }